Unable to match bevel curve to reference photo
I think your best bet is to make the bevel manually (without a modifier). You can use a custom bevel profile when you first create the bevel (this option is present in the modifier as well, but is much harder to work with, and doesn't always give the best results). You can then chose whatever shape you want by modifying the curve. You can do multiple edges/verts simultaneously this way as well (not shown):